<?php
header('Content-type:text/html;charset=utf-8');
?>
<html>
<head>
    <style>
        table{width:100%;height: auto;}
        tr{  width:100%;height: 50px;border: 1px solid;font-size: 30px;}
        td{  width: 130px;;height: 50px;border: 1px solid;}
    </style>
</head>
<body>
<?php
echo '<table border="2">';
for ($i=1;$i<10;++$i){
    echo '<tr>';

    for ($j=1;$j<=$i;++$j){
        echo "<td>{$j}x{$i}=".$j*$i."</td>";
    }
    echo '</tr>';
}
echo'</table>';
?>
</body>
</html>